<?php
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
use Magento\TestFramework\Workaround\Override\Fixture\Resolver;

Resolver::getInstance()->requireDataFixture('Magento/Downloadable/_files/product_downloadable.php');

$objectManager = \Magento\TestFramework\Helper\Bootstrap::getObjectManager();

$addressData = include __DIR__ . '/../../../Magento/Sales/_files/address_data.php';

$billingAddress = $objectManager->create(\Magento\Sales\Model\Order\Address::class, ['data' => $addressData]);
$billingAddress->setAddressType('billing');

$shippingAddress = clone $billingAddress;
$shippingAddress->setId(null)->setAddressType('shipping');

$payment = $objectManager->create(\Magento\Sales\Model\Order\Payment::class);
$payment->setMethod('checkmo');

/** @var $product \Magento\Catalog\Model\Product */
$product = $objectManager->create(\Magento\Catalog\Model\Product::class);
$product->load(1);

$requestInfo = [
    'links' => array_keys($product->getDownloadableLinks()),
];

/** @var \Magento\Sales\Model\Order\Item $orderItem */
$orderItem = $objectManager->create(\Magento\Sales\Model\Order\Item::class);
$orderItem->setProductId($product->getId());
$orderItem->setQtyOrdered(1);
$orderItem->setBasePrice($product->getPrice());
$orderItem->setPrice($product->getPrice());
$orderItem->setRowTotal($product->getPrice());
$orderItem->setProductType($product->getTypeId());
$orderItem->setProductOptions(['info_buyRequest' => $requestInfo]);

/** @var \Magento\Sales\Model\Order $order */
$order = $objectManager->create(\Magento\Sales\Model\Order::class);
$order->setIncrementId('100000001');
$order->setState(\Magento\Sales\Model\Order::STATE_NEW);
$order->setStatus($order->getConfig()->getStateDefaultStatus(\Magento\Sales\Model\Order::STATE_NEW));
$order->setCustomerIsGuest(true);
$order->setCustomerEmail('customer@null.com');
$order->setCustomerFirstname('firstname');
$order->setCustomerLastname('lastname');
$order->setBillingAddress($billingAddress);
$order->setShippingAddress($shippingAddress);
$order->setAddresses([$billingAddress, $shippingAddress]);
$order->setPayment($payment);
$order->addItem($orderItem);
$order->setStoreId($objectManager->get(\Magento\Store\Model\StoreManagerInterface::class)->getStore()->getId());
$order->setSubtotal(100);
$order->setBaseSubtotal(100);
$order->setBaseGrandTotal(100);
$order->save();
